<template>
  <view>
	<view class="cart-container" v-if="cart.length !==0">
    <my-address></my-address>
		<!-- 购物车商品列表的标题区域 -->
    <view class="cart-title">
      <uni-icons type="shop" size="18"></uni-icons>
      <!-- 描述文本 -->
      <text class="cart-title-text">购物车</text>
    </view>
    <!-- 商品列表区域 -->  
    <uni-swipe-action>
      <block v-for="(item, i) in cart" :key="i">
        <uni-swipe-action-item :options="options"  @click="swipeActionClickHandler(item)">
           <my-goods :goods="item" :show-radio="true" @myClick="radioChangeHandler" :show-num="true" @num-change="numberChange"></my-goods>   
        </uni-swipe-action-item>
      </block>
    </uni-swipe-action>
    <!-- 结算组件 -->
    <my-settle></my-settle>
	</view>
  <!-- 空白购物车区域 -->
  <view class="empty-cart" v-else>
    <image src="/static/cart_empty@2x.png" class="empty-img"></image>
    <text class="tip-text">空空如也~</text>
  </view>
  </view>
</template>

<script>
  import badgeMix from '@/mixins/tabbar-abdge.js'
  import { mapState, mapMutations } from 'vuex'
	export default {
		data() {
			return {
        // 滑动数据
				options: [
          {
            text: '删除',
            style: {
              backgroundColor: '#C00000'
            }
          }
        ]
			};
		},
    mixins: [badgeMix],
    computed: {
      // 将 m_cart 模块中的 cart 数组映射到当前页面中使用
      ...mapState('m_cart', ['cart'])
    },
    onShow() {
    },
    methods: {
      ...mapMutations('m_cart',['updateGoodsState', 'updateGoodsCount', 'removegoodsById']),
      // 商品的勾选状态发生了变化
      radioChangeHandler(e) {
        console.log(e)
        this.updateGoodsState(e)
      },
      // 商品的数量发生了变化
      numberChange(e) {
        this.updateGoodsCount(e)
      },
      // 滑动组件点击事件
      swipeActionClickHandler(item) {
        this.removegoodsById(item.goods_id)
      },
    }
	}
</script>

<style lang="scss">
  .cart-container {
    padding-bottom: 50px;
  }
  .cart-title {
    height: 40px;
    display: flex;
    align-items:center;
    font-size: 14px;
    padding-left:5px ;
    border-bottom: 1px solid #efefef;
    .cart-title-text {
      margin-left: 10px ;
    }
  }
  .empty-cart {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: 150px;
    .empty-img {
      width: 90px;
      height: 90px;
    }
    .tip-text {
      font-size: 12px;
      color: gray;
      margin-top: 15px;
    }
  }
</style>
